Books with author Rudolf F. Graf

More than 100 entertaining projects and experiments are a fast and reliable way of learning basic principles of electricity. For maximum exposure to the fundamentals, three major categories — static electricity, magnetism, and current electricity and electromagnetism — are treated separately. No special or expensive materials are required. Detailed instructions and illustrations.

Includes the magic finger, making a paper spider, experiment with charged coins, fill the stocking, building an electroscope, the swinging grain. hindu thread trick, the charged tap, surprise the cat, clean records electrostatically, dancing soap bubble, a hair raising experiment, the free wheeling straw, building a proof plane, using the electroscope, like charges repel, the obedient oing pong ball, charge a balloon, charge yourself, tricks with a comb, making water wiggle, leaf electroscope, the leyden jar, static electric pendulum, electrostatic palm tree, and more;Electricity is a general term encompassing a variety of phenomena resulting from the presence and flow of electric charge. These include many easily recognizable phenomena, such as lightning, static electricity, and the flow of electrical current in an electrical wire. In addition, electricity encompasses less familiar concepts such as the electromagnetic field and electromagnetic induction. The word is from the New Latin electricus, "amber-like", coined in the year 1600 from the Greek (electron) meaning amber (hardened plant resin), because static electricity effects were produced classically by rubbing amber. Usage In general the "electricity" refers to a number of physical effects. In scientific usage the term is vague, and these concepts are better identified by more precise terms: Electric charge: a property of some subatomic particles, which determines their electromagnetic interactions. Electrically charged matter is influenced by, and produces, electromagnetic fields. Electric current: a movement or flow of electrically charged particles, typically measured in amperes.Electric field: an influence produced by an electric charge on other charges in its vicinity.Electric potential: the capacity of an electric field to do work on an electric charge, typically measured in volts. Electromagnetism: a fundamental interaction between the magnetic field and the presence and motion of an electric charge.